diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-12 16:04:50 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-12 16:04:50 -0700 |
commit | 3f603ed319d5120e883e64ac5967b2fc848fc43b (patch) | |
tree | 52ef311c245e4e4cd623b546ea1daf05a5ea8911 /drivers/acpi/hardware/hwsleep.c | |
parent | 55ee3b8365fd5d301b9076eea739146f2b91e82c (diff) | |
parent | 5028770a42e7bc4d15791a44c28f0ad539323807 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-2.6
Diffstat (limited to 'drivers/acpi/hardware/hwsleep.c')
-rw-r--r-- | drivers/acpi/hardware/hwsleep.c | 101 |
1 files changed, 54 insertions, 47 deletions
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c index 77b3e9a8550..415d342aeab 100644 --- a/drivers/acpi/hardware/hwsleep.c +++ b/drivers/acpi/hardware/hwsleep.c @@ -43,27 +43,13 @@ */ #include <linux/module.h> - #include <acpi/acpi.h> #define _COMPONENT ACPI_HARDWARE ACPI_MODULE_NAME ("hwsleep") -#define METHOD_NAME__BFS "\\_BFS" -#define METHOD_NAME__GTS "\\_GTS" -#define METHOD_NAME__PTS "\\_PTS" -#define METHOD_NAME__SST "\\_SI._SST" -#define METHOD_NAME__WAK "\\_WAK" - -#define ACPI_SST_INDICATOR_OFF 0 -#define ACPI_SST_WORKING 1 -#define ACPI_SST_WAKING 2 -#define ACPI_SST_SLEEPING 3 -#define ACPI_SST_SLEEP_CONTEXT 4 - - -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_set_firmware_waking_vector * @@ -72,7 +58,7 @@ * * RETURN: Status * - * DESCRIPTION: access function for d_firmware_waking_vector field in FACS + * DESCRIPTION: Access function for the firmware_waking_vector field in FACS * ******************************************************************************/ @@ -99,19 +85,20 @@ acpi_set_firmware_waking_vector ( } -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_get_firmware_waking_vector * - * PARAMETERS: *physical_address - Output buffer where contents of + * PARAMETERS: *physical_address - Where the contents of * the firmware_waking_vector field of - * the FACS will be stored. + * the FACS will be returned. * - * RETURN: Status + * RETURN: Status, vector * - * DESCRIPTION: Access function for firmware_waking_vector field in FACS + * DESCRIPTION: Access function for the firmware_waking_vector field in FACS * ******************************************************************************/ + #ifdef ACPI_FUTURE_USAGE acpi_status acpi_get_firmware_waking_vector ( @@ -141,7 +128,7 @@ acpi_get_firmware_waking_vector ( #endif -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_enter_sleep_state_prep * @@ -215,7 +202,7 @@ acpi_enter_sleep_state_prep ( break; default: - arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is indicator off */ + arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */ break; } @@ -223,14 +210,15 @@ acpi_enter_sleep_state_prep ( status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL); if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) { - ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status))); + ACPI_REPORT_ERROR (("Method _SST failed, %s\n", + acpi_format_exception (status))); } return_ACPI_STATUS (AE_OK); } -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_enter_sleep_state * @@ -299,15 +287,18 @@ acpi_enter_sleep_state ( /* Get current value of PM1A control */ - status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); + status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Entering sleep state [S%d]\n", sleep_state)); + ACPI_DEBUG_PRINT ((ACPI_DB_INIT, + "Entering sleep state [S%d]\n", sleep_state)); /* Clear SLP_EN and SLP_TYP fields */ - PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | sleep_enable_reg_info->access_bit_mask); + PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | + sleep_enable_reg_info->access_bit_mask); PM1Bcontrol = PM1Acontrol; /* Insert SLP_TYP bits */ @@ -322,12 +313,14 @@ acpi_enter_sleep_state ( /* Write #1: fill in SLP_TYP data */ - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); + status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); + status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } @@ -341,22 +334,25 @@ acpi_enter_sleep_state ( ACPI_FLUSH_CPU_CACHE (); - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); + status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); + status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } if (sleep_state > ACPI_STATE_S3) { /* - * We wanted to sleep > S3, but it didn't happen (by virtue of the fact that - * we are still executing!) + * We wanted to sleep > S3, but it didn't happen (by virtue of the + * fact that we are still executing!) * - * Wait ten seconds, then try again. This is to get S4/S5 to work on all machines. + * Wait ten seconds, then try again. This is to get S4/S5 to work on + * all machines. * * We wait so long to allow chipsets that poll this reg very slowly to * still read the right value. Ideally, this block would go @@ -364,7 +360,8 @@ acpi_enter_sleep_state ( */ acpi_os_stall (10000000); - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL, + status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_CONTROL, sleep_enable_reg_info->access_bit_mask); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); @@ -374,7 +371,8 @@ acpi_enter_sleep_state ( /* Wait until we enter sleep state */ do { - status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, ACPI_MTX_DO_NOT_LOCK); + status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, + ACPI_MTX_DO_NOT_LOCK); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } @@ -388,7 +386,7 @@ acpi_enter_sleep_state ( EXPORT_SYMBOL(acpi_enter_sleep_state); -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_enter_sleep_state_s4bios * @@ -439,11 +437,13 @@ acpi_enter_sleep_state_s4bios ( ACPI_FLUSH_CPU_CACHE (); - status = acpi_os_write_port (acpi_gbl_FADT->smi_cmd, (u32) acpi_gbl_FADT->S4bios_req, 8); + status = acpi_os_write_port (acpi_gbl_FADT->smi_cmd, + (u32) acpi_gbl_FADT->S4bios_req, 8); do { acpi_os_stall(1000); - status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, ACPI_MTX_DO_NOT_LOCK); + status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, + ACPI_MTX_DO_NOT_LOCK); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } @@ -454,7 +454,7 @@ acpi_enter_sleep_state_s4bios ( EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios); -/****************************************************************************** +/******************************************************************************* * * FUNCTION: acpi_leave_sleep_state * @@ -534,18 +534,21 @@ acpi_leave_sleep_state ( arg.integer.value = ACPI_SST_WAKING; status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL); if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) { - ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status))); + ACPI_REPORT_ERROR (("Method _SST failed, %s\n", + acpi_format_exception (status))); } arg.integer.value = sleep_state; status = acpi_evaluate_object (NULL, METHOD_NAME__BFS, &arg_list, NULL); if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) { - ACPI_REPORT_ERROR (("Method _BFS failed, %s\n", acpi_format_exception (status))); + ACPI_REPORT_ERROR (("Method _BFS failed, %s\n", + acpi_format_exception (status))); } status = acpi_evaluate_object (NULL, METHOD_NAME__WAK, &arg_list, NULL); if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) { - ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", acpi_format_exception (status))); + ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", + acpi_format_exception (status))); } /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */ @@ -567,15 +570,19 @@ acpi_leave_sleep_state ( /* Enable power button */ - (void) acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].enable_register_id, + (void) acpi_set_register( + acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].enable_register_id, 1, ACPI_MTX_DO_NOT_LOCK); - (void) acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].status_register_id, + + (void) acpi_set_register( + acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].status_register_id, 1, ACPI_MTX_DO_NOT_LOCK); arg.integer.value = ACPI_SST_WORKING; status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL); if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) { - ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status))); + ACPI_REPORT_ERROR (("Method _SST failed, %s\n", + acpi_format_exception (status))); } return_ACPI_STATUS (status); |